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What happens before dehiscence of anther?

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Important Questions on Sexual Reproduction in Flowering Plants

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The ovule of an angiosperm is technically equivalent to
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Which of the following are the important floral rewards to the animal pollinators?
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Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by
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Which one of the following may require pollinators, but is genetically similar to autogamy?
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Pollen grains can be stored for several years in liquid nitrogen having a temperature of
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Pollination in water hyacinth and water lily is brought about by the agency of:
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In Angiosperms, microsporogenesis and megasporogenesis:
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Study the following statements:
l) Pollen grains of many species cause severe allergies and bronchial afflictions in some people often leading to chronic respiratory disorders.
II) Pollen grains are rich in nutrients.
III) Carrot grass that came into India as a contaminant with imported rice. Choose the option for the correct statements: